Wärtsilä in the USA


Accounts Payable
Wärtsilä North America
11710 N. Gessner Rd, Ste. A.
Attn. Accounts Payable
Houston, TX 77064

Wärtsilä North America, Inc. processes all invoices electronically. Invoices should be submitted as follows: 

  • Each invoice must be emailed in PDF format to - invoices received in any format other than PDF cannot be processed

  • Submit only one invoice per PDF file (all relevant back-up must be included within this PDF).  Multiple invoices sent within one PDF file cannot be processed
  • Each email must have only one PDF file attached – multiple attachments cannot be processed by the system

  • In the subject line of email, include Company name, invoice number and purchase order number (if applicable)

Payment inquiries or statements should be sent to

All supplies of goods and/or services are subject to the Wärtsilä North America, Inc. General Terms and Conditions USA - Purchase Orders (2018). The Company will supply copies of the General Terms and Conditions upon request.

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